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Mathematical Models Of Topologically Protected Transport In Twisted Bilayer Graphene, Guillaume Bal, Paul Cazeaux, Daniel Massatt, Solomon Quinn Jan 2023

Mathematical Models Of Topologically Protected Transport In Twisted Bilayer Graphene, Guillaume Bal, Paul Cazeaux, Daniel Massatt, Solomon Quinn

Faculty Publications

Twisted bilayer graphene gives rise to large moir\'e patterns that form a triangular network upon mechanical relaxation. If gating is included, each triangular region has gapped electronic Dirac points that behave as bulk topological insulators with topological indices depending on valley index and the type of stacking. Since each triangle has two oppositely charged valleys, they remain topologically trivial. In this work, we address several questions related to the edge currents of this system by analysis and computation of continuum PDE models. First, we derive the bulk invariants corresponding to a single valley, and then apply a bulk-interface correspondence to …

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Uniqueness Of Entire Solutions To Quasilinear Equations Of P-Laplace Type, Nguyen Cong Phuc, Igor E. Verbitsky Jan 2023

Uniqueness Of Entire Solutions To Quasilinear Equations Of P-Laplace Type, Nguyen Cong Phuc, Igor E. Verbitsky

Faculty Publications

We prove the uniqueness property for a class of entire solutions to the equation (Formula presented) where σ is a nonnegative locally finite measure in Rn, absolutely continuous with respect to the p-capacity, and div A(x, ∇u) is the A-Laplace operator, under standard growth and monotonicity assumptions of order p (1 < p < ∞) on A(x, ξ) (x, ξ ∈ Rn); the model case A(x, ξ) = ξ|ξ|p−2 corresponds to the p-Laplace operator ∆p on Rn. Our main results establish uniqueness of solutions to a similar problem,(Formula presented) in the sub-natural growth case 0 < q < p − 1, where µ, σ are nonnegative locally finite measures in Rn, absolutely continuous with respect to the …

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An Upper Bound For The Circumference Of A 3-Connected Binary Matroid, Manoel Lemos, James Oxley Jan 2023

An Upper Bound For The Circumference Of A 3-Connected Binary Matroid, Manoel Lemos, James Oxley

Faculty Publications

Jim Geelen and Peter Nelson proved that, for a loopless connected binary ma-troid M with an odd circuit, if a largest odd circuit of M has k elements, then a largest circuit of M has at most 2k − 2 elements. The goal of this note is to show that, when M is 3-connected, either M has a spanning circuit, or a largest circuit of M has at most 2k − 4 elements. Moreover, the latter holds when M is regular of rank at least four.

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Generalizing Cographs To 2-Cographs, James Oxley, Jagdeep Singh Jan 2023

Generalizing Cographs To 2-Cographs, James Oxley, Jagdeep Singh

Faculty Publications

A graph in which every connected induced subgraph has a disconnected complement is called a cograph. Such graphs are precisely the graphs that do not have the 4-vertex path as an induced subgraph. We define a 2-cograph to be a graph in which the complement of every 2-connected induced subgraph is not 2-connected. We show that, like cographs, 2-cographs can be recursively defined and are closed under induced minors. We characterize the class of non-2-cographs for which every proper induced minor is a 2-cograph. We further find the finitely many members of this class whose complements are also induced-minor-minimal non-2-cographs.

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Seepage-Induced Pore Pressure Variations Beneath An Earthen Levee Measured With A Novel Seismic Tool, Daniel Locci-Lopez, Juan M. Lorenzo Jan 2023

Seepage-Induced Pore Pressure Variations Beneath An Earthen Levee Measured With A Novel Seismic Tool, Daniel Locci-Lopez, Juan M. Lorenzo

Faculty Publications

Shear-wave seismic reflection velocity-versus-depth models can complement our understanding of seepage pore pressure variations beneath earthen levees at locations between geotechnical sites. The seasonal variations of water level in the Mississippi River create pore pressure changes in the adjacent hydraulically connected aquifer on the protected side of artificial levees. Time-lapse shear-wave velocity analysis or repetition of seismic acquisition over an area is a non-invasive method that can detect seasonal pore pressure variations in shallow (< 40 m) aquifers. The seismic reflection patterns during the seasonal pore pressure variations of the river show a distinctive change in the velocity semblance analysis, which is translated as a change in the average stress carried by the grain-to-grain contact, or simply the effective pressure. The seismic data show a greater variation of up to +140/−40 m/s or +700/−150 kPa in the confined aquifer zone, compared with the leaky confined aquifer zone of up to +46/−48 m/s or +140/−80 kPa. These relative effective pressure characteristics allow us to distinguish between confined and leaky aquifers and can be an optional approach for pressure prediction in floodplains along levees without the need to drill borings in the area to measure piezometric data.

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Climate And Atlantic Sea-Level Recorded In Southwestern Spain From 6.3 To 5.2 Ma. Inferences On The Messinian Crisis In The Mediterranean, Jean Pierre Suc, Séverine Fauquette, Sophie Warny, Gonzalo Jiménez-Moreno, Damien Do Couto Jan 2023

Climate And Atlantic Sea-Level Recorded In Southwestern Spain From 6.3 To 5.2 Ma. Inferences On The Messinian Crisis In The Mediterranean, Jean Pierre Suc, Séverine Fauquette, Sophie Warny, Gonzalo Jiménez-Moreno, Damien Do Couto

Faculty Publications

The Mio-Pliocene succession of Andalusia on the Atlantic coast (Guadalquivir Basin) is known as one of the former stratotype candidate for the Andalusian Stage, proposed during the seventies as the last stage of the Miocene. Its type section is located in Carmona, east of Seville. Our investigation includes the drilling of three cored boreholes, which provide bio- and magnetic-stratigraphic data in complement to pre-existing industrial information, and a high-resolution palynological analysis (pollen grains, spores and dinoflagellate cysts). The pollen flora and its climatic quantification provide the mean to correlate the section to the oxygen isotope curve from the Montemayor-1 borehole, …

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The Lagrangian Numerical Relativity Code Sphincs_Bssn_V1.0, Stephan Rosswog, Francesco Torsello, Peter Diener Jan 2023

The Lagrangian Numerical Relativity Code Sphincs_Bssn_V1.0, Stephan Rosswog, Francesco Torsello, Peter Diener

Faculty Publications

We present version 1.0 of our Lagrangian numerical relativity code SPHINCS_BSSN. This code evolves the full set of Einstein equations, but contrary to other numerical relativity codes, it evolves the matter fluid via Lagrangian particles in the framework of a high-accuracy version of smooth particle hydrodynamics (SPH). The major new elements introduced here are: (i) a new method to map the stress–energy tensor (known at the particles) to the spacetime mesh, based on a local regression estimate; (ii) additional measures that ensure the robust evolution of a neutron star through its collapse to a black hole; and (iii) further refinements …

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Superfgd Prototype Time Resolution Studies, I. Alekseev, T. Arihara, V. Baranov, L. Bartoszek, L. Bernardi, A. Blondel, A. V. Boikov, M. Buizza-Avanzini, F. Cadoux, J. Capó, J. Cayo, J. Chakrani, P. S. Chong, A. Chvirova, M. Danilov, Y. I. Davydov, A. Dergacheva, N. Dokania, D. Douqa, O. Drapier, A. Eguchi, Y. Favre, D. Fedorova, S. Fedotov, Y. Fujii, F. Gastaldi, A. Gendotti, V. Glagolev, R. Guillaumat, K. Iwamoto, M. Jakkapu, C. Jesús-Valls, C. K. Jung Jan 2023

Superfgd Prototype Time Resolution Studies, I. Alekseev, T. Arihara, V. Baranov, L. Bartoszek, L. Bernardi, A. Blondel, A. V. Boikov, M. Buizza-Avanzini, F. Cadoux, J. Capó, J. Cayo, J. Chakrani, P. S. Chong, A. Chvirova, M. Danilov, Y. I. Davydov, A. Dergacheva, N. Dokania, D. Douqa, O. Drapier, A. Eguchi, Y. Favre, D. Fedorova, S. Fedotov, Y. Fujii, F. Gastaldi, A. Gendotti, V. Glagolev, R. Guillaumat, K. Iwamoto, M. Jakkapu, C. Jesús-Valls, C. K. Jung

Faculty Publications

The SuperFGD detector will be a novel and important upgrade to the ND280 near detector for both the T2K and Hyper-Kamiokande projects. The main goal of the ND280 upgrade is to reduce systematic uncertainties associated with neutrino flux and cross-section modeling for future studies of neutrino oscillations using the T2K and Hyper-Kamiokande experiments. The upgraded ND280 detector will be able to perform a full exclusive reconstruction of the final state from neutrino-nucleus interactions, including measurements of low momentum protons, pions and for the first time, event-by event measurements of neutron kinematics. Precisely understanding the time resolution is critical for the …

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Ab Initio Symmetry-Adapted Emulator For Studying Emergent Collectivity And Clustering In Nuclei, K. S. Becker, K. D. Launey, A. Ekström, T. Dytrych Jan 2023

Ab Initio Symmetry-Adapted Emulator For Studying Emergent Collectivity And Clustering In Nuclei, K. S. Becker, K. D. Launey, A. Ekström, T. Dytrych

Faculty Publications

We discuss emulators from the ab initio symmetry-adapted no-core shell-model framework for studying the formation of alpha clustering and collective properties without effective charges. We present a new type of an emulator, one that utilizes the eigenvector continuation technique but is based on the use of symplectic symmetry considerations. This is achieved by using physically relevant degrees of freedom, namely, the symmetry-adapted basis, which exploits the almost perfect symplectic symmetry in nuclei. Specifically, we study excitation energies, point-proton root-mean-square radii, along with electric quadrupole moments and transitions for 6Li and 12C. We show that the set of parameterizations …

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Effects Of Anisotropy And Disorder On The Superconducting Properties Of Niobium, Mehdi Zarea, Hikaru Ueki, J. A. Sauls Jan 2023

Effects Of Anisotropy And Disorder On The Superconducting Properties Of Niobium, Mehdi Zarea, Hikaru Ueki, J. A. Sauls

Faculty Publications

We report results for the superconducting transition temperature and anisotropic energy gap for pure niobium based on Eliashberg’s equations and electron and phonon band structures computed from density functional theory. The electronic band structure is used to construct the Fermi surface and calculate the Fermi velocity at each point on the Fermi surface. The phonon bands are in excellent agreement with inelastic neutron scattering data. The corresponding phonon density of states and electron–phonon coupling define the electron–phonon spectral function, α2F(p, p′; ω), and the corresponding electron–phonon pairing interaction, which is the basis for computing the superconducting properties. The …

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Non-Fermi Liquid Behavior In The Three-Dimensional Hubbard Model, Samuel Kellar, Ka Ming Tam, Juana Moreno Jan 2023

Non-Fermi Liquid Behavior In The Three-Dimensional Hubbard Model, Samuel Kellar, Ka Ming Tam, Juana Moreno

Faculty Publications

We present a numerical study on the non-Fermi liquid behavior of a three-dimensional strongly correlated system. The Hubbard model in a simple cubic lattice is simulated by the dynamical cluster approximation; in particular, the quasi-particle weight is calculated at finite dopings for a range of temperatures. By fitting the quasi-particle weight to the marginal Fermi liquid form at finite doping near the putative quantum critical point, we find evidence of a separatrix between Fermi liquid and non-Fermi liquid regions. Our results suggest that a marginal Fermi liquid and possibly a quantum critical point exist in the non-symmetry broken solution of …

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The Link Between Marine Thermal Discharges And Nemopilema Nomurai Blooms Around Nuclear Power Plants, Jiawei Wu, Jie Kong, Edward A. Laws, Xin Liu, Changyun Wang, Jixin Chen, Mianrun Chen, Qingzhen Yao, Yantao Wang, Yu Zhen, Chaolun Li, Bangqin Huang Jan 2023

The Link Between Marine Thermal Discharges And Nemopilema Nomurai Blooms Around Nuclear Power Plants, Jiawei Wu, Jie Kong, Edward A. Laws, Xin Liu, Changyun Wang, Jixin Chen, Mianrun Chen, Qingzhen Yao, Yantao Wang, Yu Zhen, Chaolun Li, Bangqin Huang

Faculty Publications

Recent research has shown that jellyfish blooms occur more frequently near nuclear power plants (NPPs), and a relationship between thermal discharges from the NPPs and the blooms has been hypothesized. There is, however, no direct evidence that links the thermal discharges with jellyfish blooms. In this study, we conducted 3 cruises (pre-bloom, bloom, and post-bloom) during July to September 2017 in the area surrounding the largest NPP in northern China. The water temperature near the cooling water outfall rose by 2 °C. Although we found no significant impact on phytoplankton abundance or community composition near the outfall, a broader analysis …

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The Dose-Response Effect Of Aerobic Exercise On Inflammation In Colon Cancer Survivors, Justin C. Brown, Stephanie L.E. Compton, Jeffrey A. Meyerhardt, Guillaume Spielmann, Shengping Yang Jan 2023

The Dose-Response Effect Of Aerobic Exercise On Inflammation In Colon Cancer Survivors, Justin C. Brown, Stephanie L.E. Compton, Jeffrey A. Meyerhardt, Guillaume Spielmann, Shengping Yang

Faculty Publications

Background: Physical activity after surgical resection for colon cancer is associated with significantly longer disease-free survival. Inflammation is hypothesized to mediate the association between physical activity and disease-free survival in colon cancer. Methods: In this exploratory analysis of a randomized dose-response trial, 39 colon cancer survivors who completed standard therapy were stratified by cancer stage and randomized in a 1:1:1 ratio to one of three treatment groups for 24 weeks of usual-care control, 150 min/wk of moderate-intensity aerobic exercise (low-dose), or 300 min/wk of moderate-intensity aerobic exercise (high-dose). Inflammation outcomes included high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL6), and soluble tumor …

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Acute Exercise Induces Distinct Quantitative And Phenotypical T Cell Profiles In Men With Prostate Cancer, Erik D. Hanson, Samy Sakkal, Lauren C. Bates-Fraser, Shadney Que, Eunhan Cho, Guillaume Spielmann, Elif Kadife, John A. Violet, Claudio L. Battaglini, Lee Stoner, David B. Bartlett, Glenn K. Mcconell, Alan Hayes Jan 2023

Acute Exercise Induces Distinct Quantitative And Phenotypical T Cell Profiles In Men With Prostate Cancer, Erik D. Hanson, Samy Sakkal, Lauren C. Bates-Fraser, Shadney Que, Eunhan Cho, Guillaume Spielmann, Elif Kadife, John A. Violet, Claudio L. Battaglini, Lee Stoner, David B. Bartlett, Glenn K. Mcconell, Alan Hayes

Faculty Publications

Background: Reduced testosterone levels can influence immune system function, particularly T cells. Exercise during cancer reduces treatment-related side effects and provide a stimulus to mobilize and redistribute immune cells. However, it is unclear how conventional and unconventional T cells (UTC) respond to acute exercise in prostate cancer survivors compared to healthy controls. Methods: Age-matched prostate cancer survivors on androgen deprivation therapy (ADT) and those without ADT (PCa) along with non-cancer controls (CON) completed ∼45 min of intermittent cycling with 3 min at 60% of peak power interspersed by 1.5 min of rest. Fresh, unstimulated immune cell populations and intracellular perforin …

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Phylogenomics Of Trans-Andean Tetras Of The Genus Hyphessobrycon Durbin 1908 (Stethaprioninae: Characidae) And Colonization Patterns Of Middle America, Diego J. Elías, Caleb D. Mcmahan, Fernando Alda, Carlos García-Alzate, Pamela B. Hart, Prosanta Chakrabarty Jan 2023

Phylogenomics Of Trans-Andean Tetras Of The Genus Hyphessobrycon Durbin 1908 (Stethaprioninae: Characidae) And Colonization Patterns Of Middle America, Diego J. Elías, Caleb D. Mcmahan, Fernando Alda, Carlos García-Alzate, Pamela B. Hart, Prosanta Chakrabarty

Faculty Publications

Hyphessobrycon is one of the most species rich and widely distributed genera in the family Characidae, with more than 160 species ranging from Veracruz, Mexico to Mar Chiquita Lagoon in Buenos Aires, Argentina. The majority of Hyphessobrycon diversity shows a cis- Andean distribution; only nine species are trans-Andean including H. compressus (Meek 1908). It is well established that Hyphessobrycon is not monophyletic but it has been suggested that natural groups can be identified within the larger Hyphessobrycon species group. In this study, we tested the monophyly of trans-Andean species of Hyphessobrycon and investigated the placement of H. compressus. We inferred …

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A Finite Element Method For A Two-Dimensional Pucci Equation, Susanne C. Brenner, Li Yeng Sung, Zhiyu Tan Jan 2023

A Finite Element Method For A Two-Dimensional Pucci Equation, Susanne C. Brenner, Li Yeng Sung, Zhiyu Tan

Faculty Publications

A nonlinear least-squares finite element method for strong solutions of the Dirichlet boundary value problem of a two-dimensional Pucci equation on convex polygonal domains is investigated in this paper. We obtain a priori and a posteriori error estimates and present corroborating numerical results, where the discrete nonsmooth and nonlinear optimization problems are solved by an active set method and an alternating direction method with multipliers.

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An Interior Maximum Norm Error Estimate For The Symmetric Interior Penalty Method On Planar Polygonal Domains, Susanne C. Brenner, Li Yeng Sung Jan 2023

An Interior Maximum Norm Error Estimate For The Symmetric Interior Penalty Method On Planar Polygonal Domains, Susanne C. Brenner, Li Yeng Sung

Faculty Publications

We establish an interior maximum norm error estimate for the symmetric interior penalty method on planar polygonal domains.

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A Geometric Trapping Approach To Global Regularity For 2d Navier-Stokes On Manifolds, Aynur Bulut, Manh Khang Huynh Jan 2023

A Geometric Trapping Approach To Global Regularity For 2d Navier-Stokes On Manifolds, Aynur Bulut, Manh Khang Huynh

Faculty Publications

In this paper, we use frequency decomposition techniques to give a direct proof of global existence and regularity for the Navier-Stokes equations on two-dimensional Riemannian manifolds without boundary. Our techniques are inspired by an approach of Mattingly and Sinai [15] which was developed in the context of periodic boundary conditions on a flat background, and which is based on a maximum principle for Fourier coefficients. The extension to general manifolds requires several new ideas, connected to the less favorable spectral localization properties in our setting. Our arguments make use of frequency projection operators, multilinear estimates that originated in the study …

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Right-Angled Coxeter Groups With Non-Planar Boundary, Pallavi Dani, Matthew Haulmark, Genevieve Walsh Jan 2023

Right-Angled Coxeter Groups With Non-Planar Boundary, Pallavi Dani, Matthew Haulmark, Genevieve Walsh

Faculty Publications

We investigate the planarity of the boundaries of right-angled Coxeter groups. We show that non-planarity of the defining graph does not necessarily imply non-planarity of every boundary of the associated right-angled Coxeter group, although it does in many cases. Our techniques yield a characterization of the triangle-free defining graphs such that the associated right-angled Coxeter group has boundary a Menger curve.

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Unavoidable Induced Subgraphs Of Large 2-Connected Graphs, Sarah Allred, Guoli Ding, Bogdan Oporowski Jan 2023

Unavoidable Induced Subgraphs Of Large 2-Connected Graphs, Sarah Allred, Guoli Ding, Bogdan Oporowski

Faculty Publications

Ramsey_ proved that for every positive integer n, every sufficiently large graph contains an induced Kn or Kn. Among the many extensions of Ramsey's theorem, there is an analogue for connected graphs: For every positive integer n, every sufficiently large connected graph contains an induced Kn, K1,n, or Pn. In this paper, we establish an analogue for 2-connected graphs. In particular, we prove that for every integer exceeding two, every sufficiently large 2-connected graph contains one of the following as an induced subgraph: Kn, a subdivision of K2,n, a subdivision of K2,n with an edge between the two vertices of …

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On Gupta's Codensity Conjecture, Yan Cao, Guantao Chen, Guoli Ding, Guangming Jing, Wenan Zang Jan 2023

On Gupta's Codensity Conjecture, Yan Cao, Guantao Chen, Guoli Ding, Guangming Jing, Wenan Zang

Faculty Publications

Let G = (V, E) be a multigraph. The cover index ξ (G) of G is the greatest integer k for which there is a coloring of E with k colors such that each vertex of G is incident with at least one edge of each color. Let δ (G) be the minimum degree of G, and let Φ (G) be the codensity of G, defined by Φ (G) = min (equation presented) {2|E+(U)||U|+1 : U ⊆ V, | U| ≥ 3 and odd }, where E+(U) is the set of all edges of G with …

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Special Issue In Honor Of Dr. Alfred L. Gardner, Jacob A. Esselstyn, Giovani Hernández-Canchola Jan 2023

Special Issue In Honor Of Dr. Alfred L. Gardner, Jacob A. Esselstyn, Giovani Hernández-Canchola

Faculty Publications

No abstract provided.

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Editorial: Innovative Approaches To Coral Reef Science By Early Career Researchers, David A. Paz-García, Eric J. Armstrong, Iva Popovic, Raúl A. González-Pech, Michael E. Hellberg Jan 2023

Editorial: Innovative Approaches To Coral Reef Science By Early Career Researchers, David A. Paz-García, Eric J. Armstrong, Iva Popovic, Raúl A. González-Pech, Michael E. Hellberg

Faculty Publications

No abstract provided.

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Microbiome Environmental Shifts Differ Between Two Co-Occurring Octocoral Hosts, Alicia M. Reigel, Michael E. Hellberg Jan 2023

Microbiome Environmental Shifts Differ Between Two Co-Occurring Octocoral Hosts, Alicia M. Reigel, Michael E. Hellberg

Faculty Publications

Corals harbor a complex suite of beneficial microbial symbionts. Shuffling the composition of these symbionts could, in theory, help the host withstand rapidly emerging or geographically varying stressors without requiring genetic change to the coral itself. The relative impact of host qualities on microbiome (bacteria) composition should provide insight into the extent that shifting microbial symbionts can play in resilience to environmental disturbance on reefs. We sought to assess the differences in microbiome composition across a large spatial scale (between Puerto Rico and Bonaire; >700 km apart) and in response to localized anthropogenic impacts in 2 co-occurring Caribbean soft corals …

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Effect Of Estradiol And Predator Cues On Behavior And Brain Responses Of Captive Female House Sparrows (Passer Domesticus), Melanie G. Kimball, Courtney T. Harding, Kaitlin E. Couvillion, Keegan R. Stansberry, Tosha R. Kelly, Christine R. Lattin Jan 2023

Effect Of Estradiol And Predator Cues On Behavior And Brain Responses Of Captive Female House Sparrows (Passer Domesticus), Melanie G. Kimball, Courtney T. Harding, Kaitlin E. Couvillion, Keegan R. Stansberry, Tosha R. Kelly, Christine R. Lattin

Faculty Publications

The presence of predators can cause major changes in animal behavior, but how this interacts with hormonal state and brain activity is poorly understood. We gave female house sparrows (Passer domesticus) in post-molt condition an estradiol (n = 17) or empty implant (n = 16) for 1 week. Four weeks after implant removal, a time when female sparrows show large differences in neuronal activity to conspecific vs. heterospecific song, we exposed birds to either 30 min of conspecific song or predator calls, and video recorded their behavior. Females were then euthanized, and we examined neuronal activity using the expression of …

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The Use Of Single-Cell Sequencing To Reveal Stem/Progenitor Cells In Animal Organ Regeneration, Suxiang Lu, Igor Schneider, Honghui Zeng, Shunping He Jan 2023

The Use Of Single-Cell Sequencing To Reveal Stem/Progenitor Cells In Animal Organ Regeneration, Suxiang Lu, Igor Schneider, Honghui Zeng, Shunping He

Faculty Publications

Advances in single-cell sequencing technologies have made it possible to reveal the cellular basis of complex organ regeneration processes. In this review, we briefly introduce commonly used high-throughput single-cell sequencing platforms and their characteristics. We discuss in depth how single-cell sequencing techniques can be used in the study of regeneration to reveal stem/progenitor cell types and their developmental trajectories. From the perspective of stem cells, we review animal models of regenerative biology and organ models involved in regenerative medicine, with a focus on limb/fin/digit-tip regeneration. Finally, we discuss previous prospective work on improving systematic approaches to explore the origin and …

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Genotypic Variation Of Adaptive And Yield Component Traits Of Introduced Grain Oats (Avena Sativa L.) Grown In Bangladesh, Md Nashir Uddin, Md Ali Babar, Stephen A. Harrison, Ummea Khairun Fatema, S. M.Mostafa Kamal Khan Jan 2023

Genotypic Variation Of Adaptive And Yield Component Traits Of Introduced Grain Oats (Avena Sativa L.) Grown In Bangladesh, Md Nashir Uddin, Md Ali Babar, Stephen A. Harrison, Ummea Khairun Fatema, S. M.Mostafa Kamal Khan

Faculty Publications

Oat (Avena sativa L.) is considered a nutritious cereal. Its demand has surged across the globe steadily for half a decade, including in Bangladesh. Because there is no local variety, the current supply in Bangladesh solely relies on imports. This study aimed to introduce grain oats from the United States of America (U.S.A.) to Bangladesh and determine the extent of their adaptability and yield in this new environment. One hundred oat accessions were introduced in collaboration between North South University, Bangladesh and the University of Florida, U.S.A. They were evaluated in field conditions from November 2019 to April 2020 in …

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Germplasm The Key Factor For Development Of Oat Cultivars Urs Olada And Urs Poente, Marcelo Teixeira Pacheco, Stephen Harrison, Luiz Carlos Federizzi Jan 2023

Germplasm The Key Factor For Development Of Oat Cultivars Urs Olada And Urs Poente, Marcelo Teixeira Pacheco, Stephen Harrison, Luiz Carlos Federizzi

Faculty Publications

Cultivars URS OLADA and URS POENTE, with superior agronomic performance were bred by the Oat Breeding Program of UFRGS. These cultivars were developed using germplasm from the Quaker Oat International Nursery, a long-term collaborative program of open exchange of oats superior germplasm among breeders in a global scale.

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Leaky Gut And The Ingredients That Help Treat It: A Review, Ricardo Santos Aleman, Marvin Moncada, Kayanush J. Aryana Jan 2023

Leaky Gut And The Ingredients That Help Treat It: A Review, Ricardo Santos Aleman, Marvin Moncada, Kayanush J. Aryana

Faculty Publications

The human body is in daily contact with potentially toxic and infectious substances in the gastrointestinal tract (GIT). The GIT has the most significant load of antigens. The GIT can protect the intestinal integrity by allowing the passage of beneficial agents and blocking the path of harmful substances. Under normal conditions, a healthy intestinal barrier prevents toxic elements from entering the blood stream. However, factors such as stress, an unhealthy diet, excessive alcohol, antibiotics, and drug consumption can compromise the composition of the intestinal microbiota and the homeostasis of the intestinal barrier function of the intestine, leading to increased intestinal …

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Classification Of Plant Growth-Promoting Bacteria Inoculation Status And Prediction Of Growth-Related Traits In Tropical Maize Using Hyperspectral Image And Genomic Data, Rafael Massahiro Yassue, Giovanni Galli, Roberto Fritsche-Neto, Gota Morota Jan 2023

Classification Of Plant Growth-Promoting Bacteria Inoculation Status And Prediction Of Growth-Related Traits In Tropical Maize Using Hyperspectral Image And Genomic Data, Rafael Massahiro Yassue, Giovanni Galli, Roberto Fritsche-Neto, Gota Morota

Faculty Publications

Recent technological advances in high-throughput phenotyping have created new opportunities for the prediction of complex traits. In particular, phenomic prediction using hyperspectral reflectance could capture various signals that affect phenotypes genomic prediction might not explain. A total of 360 inbred maize (Zea mays L.) lines with or without plant growth-promoting bacterial inoculation management under nitrogen stress were evaluated using 150 spectral wavelengths ranging from 386 to 1,021 nm and 13,826 single-nucleotide polymorphisms. Six prediction models were explored to assess the predictive ability of hyperspectral and genomic data for inoculation status and plant growth-related traits. The best models for hyperspectral prediction …

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